Allow File Selection Dialogs

Supported on: Firefox 124 or later

Registry

HKLM Software\Policies\Mozilla\Firefox

HKCU Software\Policies\Mozilla\Firefox

Value name: AllowFileSelectionDialogs

Enabled: AllowFileSelectionDialogs = 1

Disabled: AllowFileSelectionDialogs = 0

Description

If this policy is disabled, the user will not be able to open file selection dialogs. In most cases, Firefox will act as if the user clicked the cancel button. If this policy is enabled or not configured, users can open file selection dialogs.